Shade.



PATENTBD SEPT. 26, 1905.

P. G. EMERY.

SHADE.

APPLICATION :FILED JAN. ze, 1903.

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INVENT R WITNESSESI ATTORNEY.

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' UNITED sTATns PATENT OFFICE.

PLATO e.. EMERY, oF CHICAGO, ILLINOIS.

i I SHADE.4

'No.'soaaso y Speccation of Letters Patent.

Patented Sept. 26, 1905.

Original application led October 3,1900, Serial No. 31,895. Divided andthis application filed January 26, 1903. Serial No. 140,573.

To all whom it may concern:

Be it known that I, PLATO G. EMERY, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Shades, of which thefollowing is a specification. Y

This invention relates to improvements in `shades for windows, doors,and other open.

means wholly within the shade-stick and construct it so that its tensionwill be overcome by force applied to raise and lower the shade in theusual manner.

In the accompanying drawings, Figure 1 illustrates my invention embodiedin a window-shade and is shown partly in section. Fig. 2 is alongitudinal sectional view of a part of the shade-stick and showing theclamping device. Fig. 3 is a transverse sectional view on the line 3 3of Fig. 2. Figs. 4 and 5 are detail views of parts shown in Figs. 2 and3. Fig. 6 shows the clamping device located at one end of the stick,which is partly in sec- Figs. 7 and 8 are transverse sectional viewsillustrating different ways in which the clamping device may beconstructed.

Referring to the drawings, 10 designates' the curtain of my improvedshade, mounted ,on a spring-roller 11 in a window-frame 12,

and provided with a ho1low shade-stick 13,

through which pass the squaring-cords 14.. I-

have chosen to illustrate my invention in this manner Jfor the purposeof convenience and as showing, perhaps,l the principal form in which theinvention will be used; but I do not restrict the invention to the useof a springroller for giving the shade an upward tendency nor to the useof separate squaring-cords having their ends attached to the frame atdiagonally opposite points,as shown, and the shade may be mounted in aframe or casing of any suitable character for windows; doors, or otheropenings.

vThe'shade-stick is preferably made in rectangular form incross-section, as shown in Figs. 3, 7 ,and 8; but other forms can beused andV the clamping device correspondingly` shaped without departingfrom my invention.

lThe clamping device comprises a member 15 and a yielding member 16,located within the stick and'held in a suitable manner against endwisemovement.A In Figs. 2 and 3 I have shown the member 15 supported by aremovable plate 17, which is arranged to fit in an opening 18 in thestick and has its ends 19 struck up to rest within the stick upon theend walls of the opening and providing shoulders 20 to abut against saidend walls, which form stops, preventing endwise move,- ment of theplate. A pair of screws 21. have threaded engagement with the member 15and are provided with radial flanges 22 interj mediate of their ends forresting upon the are anchored to the plate 17, and they can be readilyoperated to adjust said clamping member without removing any of theparts. The yielding member is shown held against endwise movement bystop-lugs 25, struck down from the stick, and this member of theclamping device is constantly under tension oi' a spring 26, locatedbetween itself and the wall of the stick. I may use a leaf-spring, asshown in Fig. 2, or a coil-spring 26', as shown in Figs. 7 and 8, andmore than one spring may be employed if necessary to provide sufcienttension.

The clamping device illustrated in Fig. 2

atlorded by the spring-roller or other means.

I may, however, locate the clamping device at any point in theshade-stick and employ one or more, as desired. In Fig. 6 I have shown aclamping device embodied with the cord-guide at the end ofV the stick.This Aclamping device is in all respects the same as that shown in Fig.2; but the figure shows another way of securing the device in the stick.The cord-guide 27 is arranged in the IOO end of the stick and has a topplate 28 and a bottom plate 29 integral or otherwise connected therewithand projecting-into the stick, with their ends 3() inwardly turned. 'I`he clamping members are retained in place against end wise movementbetween the cordguide and the ends ot' the top and bottom plates, andthe screws for the adjustable members have their heads seated inopenings in the bottom plate 29, which in this respect corresponds toall intents and purposes with the plate 17 shown in Fig. 2. Openings 31are provided in the stick, so that access can be had to the screws foradjusting the member 15. A leaf-spring 26 is arranged between theyielding member 16 and the top plate 28, as in Fig. 2; but one or morecoiled springs may be used. Instead of the two adjusting-screws shown inFigs. 2, 6 I may obviously use one screw at the middle ot the adjustablemember or some other suitable adjusting device, and ot' course I mayreverse the relative position of the members or arrange them side byside.

The clamping device may be constructed to engage both of the cords, asshown in Fig. 3; but it will ordinarily be suiicient to clamp only oneof the cords. and the clamping members may be constructed with this endin view. In Fig. 7 I have shown clamping members 15 16/ with theiradjacent faces rabbeted, one deeper than the other` so that only thecord 14' will be clamped. In Fig. 8 I have also shown a construction torclamping one ot the cords, the stick being divided by a partition 32into a compartment 33 for the cord 14C and a compartment 35, in whichthe other cord 14 and the clamping members 15 16 are located, theseclamping members operating only upon the single cord 14C Any ot theclamping devices can be used with the divided stick.

The operation of the invention will be readily apparent from aninspection of the drawings, and it will be understood that the ten-ysion ot' the clamping device is regulated by adjusting the member 15 tohold the shade against its upward tendency; but when force is applied toraise or lower the shade in the usual manner the tension oi' theclamping device will be overcome and permit adjustment of the shade. Theclamping device is concealed within the stick, and while it cannot betampered with it is still arranged for easy adjustment by the properpersons. In this construction I dispense entirely with handles ordevices ot' any kind for releasing the clamping device, which greatlysimplifies the construction and operation and also provides arestraining device which is not apt to get out ot' order throughcarelessness or unskilul handling. The use of a device of this characteravoids the necessity ot' keeping the squaringcords taut and giving theshade constant attention for this purpose, and besides the wear on thecords and guides is greatly reduced.

In the construction ol theJ invention as shown in the drawings andheretot'ore described I have referred to the clamping devices ascomprisinga. yielding member and an adjustable member; but l do notlimitthe invention to this specitic (amstruetion and would have it understoodthat l reserve the right to make all changes which tairly come withinthe scope of the invention.

IVithout limiting mysell" to the exact construction and arrangement olparts herein shown and described, what l claim, and desire to secure byLetters Patent, iss

1. The combination el a shade having an upward tendency, a hollowshade-stick, squaring-cords passing through the stick tor guiding theshade, and a constantly-acting handleless clamping device located withinthe stick and intermediate oi its ends lor clamping a cord.

2. The combination ot a shade having an upward tendency, a hollowshade-stick, squaring-cords passing' through the stick tor guiding theshade, and a handleless clamping de- Vice within the shade-stick andintermediate` of its ends comprising a member constantly engaging acord.

3. The combination ot a shade having an upward tendency, a hollowslimle-stiek, squaring-cords passing through the stick tor guiding theshade, and a clamping device within the shade-stick comprising anadjustal ile member and a yielding member constantly engaging a cord.

4. The combination ot a shade having an upward tendency, a hollowshade-stick, so uaring-cords passing through the stick tor guiding theshade, a clamping device comprising a yielding member and an adjustablemember, and means for adjusting said adjustable member.

5. 'Ihe combination ol a. shade having an upward tendency, a hollowshadefstick, squaring-eords passing' through the stick i'or guiding theshade, a clamping device comprising two members one ot which isadjustable. a. plate supported in an opening in the stick, and anadjusting device supported on the plate and acting on said adjustablemember.

6. The combination olt a shade having an upward tendency, a hollowshade-stick, squaring-cords passing through the stick tor guiding theshade, and a clam ping device within the stick comprising` two members,and stops for preventing endwise displacement ot said members.

7. The combination oi a shade. having an upward tendency, a hollowshade-stick, squaring-cords passing through thel stick lorguiding theshade, a clamping device within the said adjustable member, and meansvfor prestick and comprising a yielding'member and ing-cordspassingthr'ough'said compartments, an adgustable member, means for'adJustmg and a devlce comprlsmg two clampingV mem- I0 bers acting on aoord for restraining` the shade.

venting endwise displacement of said members. PLATO G. EMERY.

8. The combination of a shade having an Witnesses: upward tendency, ahollowshade-stiok divided WM.- O. BELT,

longitudinally into two compartments, squar- HELEN L. PEGK.

